Results 21 to 30 of about 99 (95)

Effects of Comet Encke's Meteoroid Stream on the Seasonal Variation of Mercury's Ca Exosphere

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Mercury's calcium (Ca) exosphere, observed by NASA's MESSENGER mission, exhibits high temperatures (>50000 K) and pronounced seasonal variability, with its source mainly on the dawn side. Enhanced Ca emission near True Anomaly Angle (TAA) ∼25° and ∼150° has been attributed to Comet 2P/Encke meteoroid streams.
M. Moroni, A. Milillo, A. Mura, A. A. Christou, P. Pokorný, V. Mangano, A. Berezhnoy, A. Aronica, A. Brin, E. De Angelis, P. P. Di Bartolomeo, A. Kazakov, S. Massetti, S. Orsini, C. Plainaki, G. Richards, R. Rispoli, R. Sordini, M. Stumpo   +18 more
wiley   +1 more source

The Lunar Dust Environment

, 2015
Planetary bodies throughout the solar system are continually bombarded by dust particles, largely originating from cometary activities and asteroidal collisions.
Szalay, Jamey Robert
core   +1 more source

Investigation of the dust environment around Europa [PDF]

, 2009
Space in the vicinity of atmosphereless bodies in the Solar system is often populated by dust originating from the surface. Fragments of the surface are ejected mostly due to hypervelocity meteoroid impacts.
Miljkovic, Katarina, Zarnecki, John, Mason, Nigel   +2 more
core  

Meteosat observation of the atmospheric entry of 2008 TC

, 2009
We analyzed serendipitous observations by the Meteosat 8 weather satellite of the fireball caused by the entry of the small asteroid (or large meteoroid) 2008 TC3 over northern Sudan on October 7, 2008. Meteosat 8 scans the Earth in 5 min cycles.
J. Borovička, Z. Charvát
core   +1 more source

Microspherules formed by lightning strikes

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 743-767, May 2026.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

ORISON, stratospheric instrumentation project with potential applications in meteoroid science

, 2016
<p>ORISON is an H2020 European-funded project created to carry out a feasibility and design study of an astronomically-oriented balloon facility that could deploy one or several small-to-medium-sized stabilized telescopes and a suite of other ...
Wolf, Jürgen (5283856), Duffard, Rene, Duffard, Rene (5283853), Maier, Philipp (5265784), Ortiz, Jose luis, Wolf, Jürgen, Maier, Philipp, Mueller, Thomas (5283850), Mueller, Thomas, Graf, Friederike, Ortiz, Jose luis (5283844), Sánchez de Miguel, Alejandro, López-Moreno, José Juan, López-Moreno, José Juan (5283847), Sánchez de Miguel, Alejandro (5265766), Graf, Friederike (5283841)   +15 more
core   +1 more source

Modeling Upper Ocean Ecosystem Dynamics in Response to Interannual Sea‐Ice Variability in the Western Antarctic Peninsula

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract In the Western Antarctic Peninsula (WAP), marine plankton dynamics are tightly linked to the interannual variability in environmental conditions, including phenological shifts in sea‐ice seasonality. To explore these linkages, we use a 1‐dimensional vertical ocean‐ice‐ecosystem model (KPP‐Eco‐Ice, or KEI) that simulates physical and ecosystem ...
Catherine R. Czajka, Jessica S. Turner, Sharon Stammerjohn, Heather H. Kim, Oscar Schofield, Benjamin T. Saenz, Scott C. Doney   +6 more
wiley   +1 more source

First LiDAR Observation of Quasi‐Periodic Structures in Mid‐Latitude E‐Region Meteoric Ca+ Layers

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We report the first LiDAR observations of continuous quasi‐periodic (QP) metal density structures in mid‐latitude E‐region meteoric Ca+ layers using an all‐solid‐state LiDAR system in Beijing (40.4°N, 116.0°E). These QP Ca+ structures, with periods of 2–30 min and vertical wavelengths of ∼2–15 km, were primarily observed above 100 km.
Jixin Guo, Tao Yu, Lifang Du, Jin Wang, Xiangxiang Yan, Yan Yu, Wenyu Hao, Yifan Qi, Haoran Zheng, Guotao Yang   +9 more
wiley   +1 more source

Interaction of internal waves with the seafloor on the Namibian shelf (SE Atlantic Ocean): Implications for seafloor geomorphology

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Over geological timescales, internal waves play a significant role in shaping the seafloor morphology. They generate nepheloid layers, slope‐parallel channels and escarpments with erosional surfaces. Abstract The long‐term impact of internal waves on sedimentation and seafloor geomorphology remains poorly constrained.
Elda Miramontes, Claudia Wienberg, Tilmann Schwenk, Christian Mohn, Nadezhda Lagunova, Ling Wang, Paul Wintersteller, Jürgen Titschack, Victor Oki, Ulrike Hanz, Furu Mienis, Sabrina Köper, Maren Walter, Dierk Hebbeln   +13 more
wiley   +1 more source

Water Oxygen Isotope Thermometer in Headwaters: Indicating Groundwater Recharge and Peatland Water Dependence on Air Temperature

Hydrological Processes, Volume 40, Issue 3, March 2026.
Stable isotopes in water act as natural tracers of precipitation temperature. In mountainous environments, the oxygen isotopic signature measured in stream water reflects air temperature during precipitation events. Oxygen‐isotope‐derived temperatures are closely linked to recharge processes, particularly in peatlands, as well as in groundwater systems.
Stéphane Binet, Thomas Rosset, Simon Gascoin, Gaël Le Roux, César Deschamps‐Berger, Pilar Durántez Jiménez, Virginie Payre‐Suc, Franck Granouillac, Issam Moussa, Laure Gandois   +9 more
wiley   +1 more source